A constrained finite strip method for open and closed cross-section members

被引：15

作者：

Djafour, M. ^{[1
]}

Djafour, N. ^{[1
]}

Megnounif, A. ^{[1
]}

Kerdal, D. E. ^{[2
]}

机构：

[1] Aboubekr Belkaid Univ, RISAM, Dept Civil Engn, Tilimsen 13000, Algeria

[2] Mohamed Boudiaf Univ, Dept Civil Engn, LM2SC, El Mnaouar, Oran, Algeria

来源：

THIN-WALLED STRUCTURES | 2010年 / 48卷 / 12期

关键词：

Stability; Thin-walled; Modal decomposition; Constrained finite strip method; BUCKLING MODE DECOMPOSITION;

D O I：

10.1016/j.tws.2010.07.004

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper, the constrained finite strip method (cFSM) is improved by simplifying the derivation of the constraint matrix which defines the combined buckling mode space formed by global and distortional modes. In the context of the FSM, only two assumptions are made to define this particular and complex subspace: (i) cylindrical plate bending (if any) and (ii) negligible in-plane transverse strains and shear strains. The constraint matrix is derived by means of procedures commonly used in numerical methods, such as FEM or FSM. This led to a simple and systematic formulation which allowed the cFSM to compute pure buckling modes for members with open and closed thin-walled cross-sections. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：955 / 965

页数：11

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